summaryrefslogtreecommitdiffstats
path: root/rxclass.c
diff options
context:
space:
mode:
Diffstat (limited to 'rxclass.c')
-rw-r--r--rxclass.c1459
1 files changed, 1459 insertions, 0 deletions
diff --git a/rxclass.c b/rxclass.c
new file mode 100644
index 0000000..f17e3a5
--- /dev/null
+++ b/rxclass.c
@@ -0,0 +1,1459 @@
+/*
+ * Copyright (C) 2008 Sun Microsystems, Inc. All rights reserved.
+ */
+#include <stdio.h>
+#include <stdint.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+
+#include <linux/sockios.h>
+#include <arpa/inet.h>
+#include "internal.h"
+
+static void invert_flow_mask(struct ethtool_rx_flow_spec *fsp)
+{
+ size_t i;
+
+ for (i = 0; i < sizeof(fsp->m_u); i++)
+ fsp->m_u.hdata[i] ^= 0xFF;
+}
+
+static void rxclass_print_ipv4_rule(__be32 sip, __be32 sipm, __be32 dip,
+ __be32 dipm, u8 tos, u8 tosm)
+{
+ char sip_str[INET_ADDRSTRLEN];
+ char sipm_str[INET_ADDRSTRLEN];
+ char dip_str[INET_ADDRSTRLEN];
+ char dipm_str[INET_ADDRSTRLEN];
+
+ fprintf(stdout,
+ "\tSrc IP addr: %s mask: %s\n"
+ "\tDest IP addr: %s mask: %s\n"
+ "\tTOS: 0x%x mask: 0x%x\n",
+ inet_ntop(AF_INET, &sip, sip_str, INET_ADDRSTRLEN),
+ inet_ntop(AF_INET, &sipm, sipm_str, INET_ADDRSTRLEN),
+ inet_ntop(AF_INET, &dip, dip_str, INET_ADDRSTRLEN),
+ inet_ntop(AF_INET, &dipm, dipm_str, INET_ADDRSTRLEN),
+ tos, tosm);
+}
+
+static void rxclass_print_ipv6_rule(__be32 *sip, __be32 *sipm, __be32 *dip,
+ __be32 *dipm, u8 tclass, u8 tclassm)
+{
+ char sip_str[INET6_ADDRSTRLEN];
+ char sipm_str[INET6_ADDRSTRLEN];
+ char dip_str[INET6_ADDRSTRLEN];
+ char dipm_str[INET6_ADDRSTRLEN];
+
+ fprintf(stdout,
+ "\tSrc IP addr: %s mask: %s\n"
+ "\tDest IP addr: %s mask: %s\n"
+ "\tTraffic Class: 0x%x mask: 0x%x\n",
+ inet_ntop(AF_INET6, sip, sip_str, INET6_ADDRSTRLEN),
+ inet_ntop(AF_INET6, sipm, sipm_str, INET6_ADDRSTRLEN),
+ inet_ntop(AF_INET6, dip, dip_str, INET6_ADDRSTRLEN),
+ inet_ntop(AF_INET6, dipm, dipm_str, INET6_ADDRSTRLEN),
+ tclass, tclassm);
+}
+
+static void rxclass_print_nfc_spec_ext(struct ethtool_rx_flow_spec *fsp)
+{
+ if (fsp->flow_type & FLOW_EXT) {
+ u64 data, datam;
+ __u16 etype, etypem, tci, tcim;
+ etype = ntohs(fsp->h_ext.vlan_etype);
+ etypem = ntohs(~fsp->m_ext.vlan_etype);
+ tci = ntohs(fsp->h_ext.vlan_tci);
+ tcim = ntohs(~fsp->m_ext.vlan_tci);
+ data = (u64)ntohl(fsp->h_ext.data[0]) << 32;
+ data |= (u64)ntohl(fsp->h_ext.data[1]);
+ datam = (u64)ntohl(~fsp->m_ext.data[0]) << 32;
+ datam |= (u64)ntohl(~fsp->m_ext.data[1]);
+
+ fprintf(stdout,
+ "\tVLAN EtherType: 0x%x mask: 0x%x\n"
+ "\tVLAN: 0x%x mask: 0x%x\n"
+ "\tUser-defined: 0x%llx mask: 0x%llx\n",
+ etype, etypem, tci, tcim, data, datam);
+ }
+
+ if (fsp->flow_type & FLOW_MAC_EXT) {
+ unsigned char *dmac, *dmacm;
+
+ dmac = fsp->h_ext.h_dest;
+ dmacm = fsp->m_ext.h_dest;
+
+ fprintf(stdout,
+ "\tDest MAC addr: %02X:%02X:%02X:%02X:%02X:%02X"
+ " mask: %02X:%02X:%02X:%02X:%02X:%02X\n",
+ dmac[0], dmac[1], dmac[2], dmac[3], dmac[4],
+ dmac[5], dmacm[0], dmacm[1], dmacm[2], dmacm[3],
+ dmacm[4], dmacm[5]);
+ }
+}
+
+static void rxclass_print_nfc_rule(struct ethtool_rx_flow_spec *fsp,
+ __u32 rss_context)
+{
+ unsigned char *smac, *smacm, *dmac, *dmacm;
+ __u32 flow_type;
+
+ fprintf(stdout, "Filter: %d\n", fsp->location);
+
+ flow_type = fsp->flow_type & ~(FLOW_EXT | FLOW_MAC_EXT | FLOW_RSS);
+
+ invert_flow_mask(fsp);
+
+ switch (flow_type) {
+ case TCP_V4_FLOW:
+ case UDP_V4_FLOW:
+ case SCTP_V4_FLOW:
+ if (flow_type == TCP_V4_FLOW)
+ fprintf(stdout, "\tRule Type: TCP over IPv4\n");
+ else if (flow_type == UDP_V4_FLOW)
+ fprintf(stdout, "\tRule Type: UDP over IPv4\n");
+ else
+ fprintf(stdout, "\tRule Type: SCTP over IPv4\n");
+ rxclass_print_ipv4_rule(fsp->h_u.tcp_ip4_spec.ip4src,
+ fsp->m_u.tcp_ip4_spec.ip4src,
+ fsp->h_u.tcp_ip4_spec.ip4dst,
+ fsp->m_u.tcp_ip4_spec.ip4dst,
+ fsp->h_u.tcp_ip4_spec.tos,
+ fsp->m_u.tcp_ip4_spec.tos);
+ fprintf(stdout,
+ "\tSrc port: %d mask: 0x%x\n"
+ "\tDest port: %d mask: 0x%x\n",
+ ntohs(fsp->h_u.tcp_ip4_spec.psrc),
+ ntohs(fsp->m_u.tcp_ip4_spec.psrc),
+ ntohs(fsp->h_u.tcp_ip4_spec.pdst),
+ ntohs(fsp->m_u.tcp_ip4_spec.pdst));
+ break;
+ case AH_V4_FLOW:
+ case ESP_V4_FLOW:
+ if (flow_type == AH_V4_FLOW)
+ fprintf(stdout, "\tRule Type: IPSEC AH over IPv4\n");
+ else
+ fprintf(stdout, "\tRule Type: IPSEC ESP over IPv4\n");
+ rxclass_print_ipv4_rule(fsp->h_u.ah_ip4_spec.ip4src,
+ fsp->m_u.ah_ip4_spec.ip4src,
+ fsp->h_u.ah_ip4_spec.ip4dst,
+ fsp->m_u.ah_ip4_spec.ip4dst,
+ fsp->h_u.ah_ip4_spec.tos,
+ fsp->m_u.ah_ip4_spec.tos);
+ fprintf(stdout,
+ "\tSPI: %d mask: 0x%x\n",
+ ntohl(fsp->h_u.esp_ip4_spec.spi),
+ ntohl(fsp->m_u.esp_ip4_spec.spi));
+ break;
+ case IPV4_USER_FLOW:
+ fprintf(stdout, "\tRule Type: Raw IPv4\n");
+ rxclass_print_ipv4_rule(fsp->h_u.usr_ip4_spec.ip4src,
+ fsp->m_u.usr_ip4_spec.ip4src,
+ fsp->h_u.usr_ip4_spec.ip4dst,
+ fsp->m_u.usr_ip4_spec.ip4dst,
+ fsp->h_u.usr_ip4_spec.tos,
+ fsp->m_u.usr_ip4_spec.tos);
+ fprintf(stdout,
+ "\tProtocol: %d mask: 0x%x\n"
+ "\tL4 bytes: 0x%x mask: 0x%x\n",
+ fsp->h_u.usr_ip4_spec.proto,
+ fsp->m_u.usr_ip4_spec.proto,
+ ntohl(fsp->h_u.usr_ip4_spec.l4_4_bytes),
+ ntohl(fsp->m_u.usr_ip4_spec.l4_4_bytes));
+ break;
+ case TCP_V6_FLOW:
+ case UDP_V6_FLOW:
+ case SCTP_V6_FLOW:
+ if (flow_type == TCP_V6_FLOW)
+ fprintf(stdout, "\tRule Type: TCP over IPv6\n");
+ else if (flow_type == UDP_V6_FLOW)
+ fprintf(stdout, "\tRule Type: UDP over IPv6\n");
+ else
+ fprintf(stdout, "\tRule Type: SCTP over IPv6\n");
+ rxclass_print_ipv6_rule(fsp->h_u.tcp_ip6_spec.ip6src,
+ fsp->m_u.tcp_ip6_spec.ip6src,
+ fsp->h_u.tcp_ip6_spec.ip6dst,
+ fsp->m_u.tcp_ip6_spec.ip6dst,
+ fsp->h_u.tcp_ip6_spec.tclass,
+ fsp->m_u.tcp_ip6_spec.tclass);
+ fprintf(stdout,
+ "\tSrc port: %d mask: 0x%x\n"
+ "\tDest port: %d mask: 0x%x\n",
+ ntohs(fsp->h_u.tcp_ip6_spec.psrc),
+ ntohs(fsp->m_u.tcp_ip6_spec.psrc),
+ ntohs(fsp->h_u.tcp_ip6_spec.pdst),
+ ntohs(fsp->m_u.tcp_ip6_spec.pdst));
+ break;
+ case AH_V6_FLOW:
+ case ESP_V6_FLOW:
+ if (flow_type == AH_V6_FLOW)
+ fprintf(stdout, "\tRule Type: IPSEC AH over IPv6\n");
+ else
+ fprintf(stdout, "\tRule Type: IPSEC ESP over IPv6\n");
+ rxclass_print_ipv6_rule(fsp->h_u.ah_ip6_spec.ip6src,
+ fsp->m_u.ah_ip6_spec.ip6src,
+ fsp->h_u.ah_ip6_spec.ip6dst,
+ fsp->m_u.ah_ip6_spec.ip6dst,
+ fsp->h_u.ah_ip6_spec.tclass,
+ fsp->m_u.ah_ip6_spec.tclass);
+ fprintf(stdout,
+ "\tSPI: %d mask: 0x%x\n",
+ ntohl(fsp->h_u.esp_ip6_spec.spi),
+ ntohl(fsp->m_u.esp_ip6_spec.spi));
+ break;
+ case IPV6_USER_FLOW:
+ fprintf(stdout, "\tRule Type: Raw IPv6\n");
+ rxclass_print_ipv6_rule(fsp->h_u.usr_ip6_spec.ip6src,
+ fsp->m_u.usr_ip6_spec.ip6src,
+ fsp->h_u.usr_ip6_spec.ip6dst,
+ fsp->m_u.usr_ip6_spec.ip6dst,
+ fsp->h_u.usr_ip6_spec.tclass,
+ fsp->m_u.usr_ip6_spec.tclass);
+ fprintf(stdout,
+ "\tProtocol: %d mask: 0x%x\n"
+ "\tL4 bytes: 0x%x mask: 0x%x\n",
+ fsp->h_u.usr_ip6_spec.l4_proto,
+ fsp->m_u.usr_ip6_spec.l4_proto,
+ ntohl(fsp->h_u.usr_ip6_spec.l4_4_bytes),
+ ntohl(fsp->m_u.usr_ip6_spec.l4_4_bytes));
+ break;
+ case ETHER_FLOW:
+ dmac = fsp->h_u.ether_spec.h_dest;
+ dmacm = fsp->m_u.ether_spec.h_dest;
+ smac = fsp->h_u.ether_spec.h_source;
+ smacm = fsp->m_u.ether_spec.h_source;
+
+ fprintf(stdout,
+ "\tFlow Type: Raw Ethernet\n"
+ "\tSrc MAC addr: %02X:%02X:%02X:%02X:%02X:%02X"
+ " mask: %02X:%02X:%02X:%02X:%02X:%02X\n"
+ "\tDest MAC addr: %02X:%02X:%02X:%02X:%02X:%02X"
+ " mask: %02X:%02X:%02X:%02X:%02X:%02X\n"
+ "\tEthertype: 0x%X mask: 0x%X\n",
+ smac[0], smac[1], smac[2], smac[3], smac[4], smac[5],
+ smacm[0], smacm[1], smacm[2], smacm[3], smacm[4],
+ smacm[5], dmac[0], dmac[1], dmac[2], dmac[3], dmac[4],
+ dmac[5], dmacm[0], dmacm[1], dmacm[2], dmacm[3],
+ dmacm[4], dmacm[5],
+ ntohs(fsp->h_u.ether_spec.h_proto),
+ ntohs(fsp->m_u.ether_spec.h_proto));
+ break;
+ default:
+ fprintf(stdout,
+ "\tUnknown Flow type: %d\n", flow_type);
+ break;
+ }
+
+ rxclass_print_nfc_spec_ext(fsp);
+
+ if (fsp->flow_type & FLOW_RSS)
+ fprintf(stdout, "\tRSS Context ID: %u\n", rss_context);
+
+ if (fsp->ring_cookie == RX_CLS_FLOW_DISC) {
+ fprintf(stdout, "\tAction: Drop\n");
+ } else if (fsp->ring_cookie == RX_CLS_FLOW_WAKE) {
+ fprintf(stdout, "\tAction: Wake-on-LAN\n");
+ } else {
+ u64 vf = ethtool_get_flow_spec_ring_vf(fsp->ring_cookie);
+ u64 queue = ethtool_get_flow_spec_ring(fsp->ring_cookie);
+
+ /* A value of zero indicates that this rule targeted the main
+ * function. A positive value indicates which virtual function
+ * was targeted, so we'll subtract 1 in order to show the
+ * correct VF index
+ */
+ if (vf)
+ fprintf(stdout, "\tAction: Direct to VF %llu queue %llu\n",
+ vf - 1, queue);
+ else
+ fprintf(stdout, "\tAction: Direct to queue %llu\n",
+ queue);
+ }
+
+ fprintf(stdout, "\n");
+}
+
+static void rxclass_print_rule(struct ethtool_rx_flow_spec *fsp,
+ __u32 rss_context)
+{
+ /* print the rule in this location */
+ switch (fsp->flow_type & ~(FLOW_EXT | FLOW_MAC_EXT | FLOW_RSS)) {
+ case TCP_V4_FLOW:
+ case UDP_V4_FLOW:
+ case SCTP_V4_FLOW:
+ case AH_V4_FLOW:
+ case ESP_V4_FLOW:
+ case TCP_V6_FLOW:
+ case UDP_V6_FLOW:
+ case SCTP_V6_FLOW:
+ case AH_V6_FLOW:
+ case ESP_V6_FLOW:
+ case IPV6_USER_FLOW:
+ case ETHER_FLOW:
+ rxclass_print_nfc_rule(fsp, rss_context);
+ break;
+ case IPV4_USER_FLOW:
+ if (fsp->h_u.usr_ip4_spec.ip_ver == ETH_RX_NFC_IP4)
+ rxclass_print_nfc_rule(fsp, rss_context);
+ else /* IPv6 uses IPV6_USER_FLOW */
+ fprintf(stderr, "IPV4_USER_FLOW with wrong ip_ver\n");
+ break;
+ default:
+ fprintf(stderr, "rxclass: Unknown flow type\n");
+ break;
+ }
+}
+
+static int rxclass_get_dev_info(struct cmd_context *ctx, __u32 *count,
+ int *driver_select)
+{
+ struct ethtool_rxnfc nfccmd;
+ int err;
+
+ nfccmd.cmd = ETHTOOL_GRXCLSRLCNT;
+ nfccmd.data = 0;
+ err = send_ioctl(ctx, &nfccmd);
+ *count = nfccmd.rule_cnt;
+ if (driver_select)
+ *driver_select = !!(nfccmd.data & RX_CLS_LOC_SPECIAL);
+ if (err < 0)
+ perror("rxclass: Cannot get RX class rule count");
+
+ return err;
+}
+
+int rxclass_rule_get(struct cmd_context *ctx, __u32 loc)
+{
+ struct ethtool_rxnfc nfccmd;
+ int err;
+
+ /* fetch rule from netdev */
+ nfccmd.cmd = ETHTOOL_GRXCLSRULE;
+ memset(&nfccmd.fs, 0, sizeof(struct ethtool_rx_flow_spec));
+ nfccmd.fs.location = loc;
+ err = send_ioctl(ctx, &nfccmd);
+ if (err < 0) {
+ perror("rxclass: Cannot get RX class rule");
+ return err;
+ }
+
+ /* display rule */
+ rxclass_print_rule(&nfccmd.fs, (__u32)nfccmd.rss_context);
+ return err;
+}
+
+int rxclass_rule_getall(struct cmd_context *ctx)
+{
+ struct ethtool_rxnfc *nfccmd;
+ __u32 *rule_locs;
+ unsigned int i;
+ __u32 count;
+ int err;
+
+ /* determine rule count */
+ err = rxclass_get_dev_info(ctx, &count, NULL);
+ if (err < 0)
+ return err;
+
+ fprintf(stdout, "Total %d rules\n\n", count);
+
+ /* alloc memory for request of location list */
+ nfccmd = calloc(1, sizeof(*nfccmd) + (count * sizeof(__u32)));
+ if (!nfccmd) {
+ perror("rxclass: Cannot allocate memory for"
+ " RX class rule locations");
+ return -ENOMEM;
+ }
+
+ /* request location list */
+ nfccmd->cmd = ETHTOOL_GRXCLSRLALL;
+ nfccmd->rule_cnt = count;
+ err = send_ioctl(ctx, nfccmd);
+ if (err < 0) {
+ perror("rxclass: Cannot get RX class rules");
+ free(nfccmd);
+ return err;
+ }
+
+ /* write locations to bitmap */
+ rule_locs = nfccmd->rule_locs;
+ for (i = 0; i < count; i++) {
+ err = rxclass_rule_get(ctx, rule_locs[i]);
+ if (err < 0)
+ break;
+ }
+
+ /* free memory and set flag to avoid reinit */
+ free(nfccmd);
+
+ return err;
+}
+
+/*
+ * This is a simple rule manager implementation for ordering rx flow
+ * classification rules based on newest rules being first in the list.
+ * The assumption is that this rule manager is the only one adding rules to
+ * the device's hardware classifier.
+ */
+
+struct rmgr_ctrl {
+ /* flag for device/driver that can select locations itself */
+ int driver_select;
+ /* slot contains a bitmap indicating which filters are valid */
+ unsigned long *slot;
+ __u32 n_rules;
+ __u32 size;
+};
+
+static int rmgr_ins(struct rmgr_ctrl *rmgr, __u32 loc)
+{
+ /* verify location is in rule manager range */
+ if (loc >= rmgr->size) {
+ fprintf(stderr, "rmgr: Location out of range\n");
+ return -1;
+ }
+
+ /* set bit for the rule */
+ set_bit(loc, rmgr->slot);
+
+ return 0;
+}
+
+static int rmgr_find_empty_slot(struct rmgr_ctrl *rmgr,
+ struct ethtool_rx_flow_spec *fsp)
+{
+ __u32 loc;
+ __u32 slot_num;
+
+ /* leave this to the driver if possible */
+ if (rmgr->driver_select)
+ return 0;
+
+ /* start at the end of the list since it is lowest priority */
+ loc = rmgr->size - 1;
+
+ /* locate the first slot a rule can be placed in */
+ slot_num = loc / BITS_PER_LONG;
+
+ /*
+ * Avoid testing individual bits by inverting the word and checking
+ * to see if any bits are left set, if so there are empty spots. By
+ * moving 1 + loc % BITS_PER_LONG we align ourselves to the last bit
+ * in the previous word.
+ *
+ * If loc rolls over it should be greater than or equal to rmgr->size
+ * and as such we know we have reached the end of the list.
+ */
+ if (!~(rmgr->slot[slot_num] | (~1UL << loc % BITS_PER_LONG))) {
+ loc -= 1 + (loc % BITS_PER_LONG);
+ slot_num--;
+ }
+
+ /*
+ * Now that we are aligned with the last bit in each long we can just
+ * go though and eliminate all the longs with no free bits
+ */
+ while (loc < rmgr->size && !~(rmgr->slot[slot_num])) {
+ loc -= BITS_PER_LONG;
+ slot_num--;
+ }
+
+ /*
+ * If we still are inside the range, test individual bits as one is
+ * likely available for our use.
+ */
+ while (loc < rmgr->size && test_bit(loc, rmgr->slot))
+ loc--;
+
+ /* location found, insert rule */
+ if (loc < rmgr->size) {
+ fsp->location = loc;
+ return rmgr_ins(rmgr, loc);
+ }
+
+ /* No space to add this rule */
+ fprintf(stderr, "rmgr: Cannot find appropriate slot to insert rule\n");
+
+ return -1;
+}
+
+static int rmgr_init(struct cmd_context *ctx, struct rmgr_ctrl *rmgr)
+{
+ struct ethtool_rxnfc *nfccmd;
+ __u32 *rule_locs;
+ unsigned int i;
+ int err;
+
+ /* clear rule manager settings */
+ memset(rmgr, 0, sizeof(*rmgr));
+
+ /* request device/driver information */
+ err = rxclass_get_dev_info(ctx, &rmgr->n_rules, &rmgr->driver_select);
+ if (err < 0)
+ return err;
+
+ /* do not get the table if the device/driver can select locations */
+ if (rmgr->driver_select)
+ return 0;
+
+ /* alloc memory for request of location list */
+ nfccmd = calloc(1, sizeof(*nfccmd) + (rmgr->n_rules * sizeof(__u32)));
+ if (!nfccmd) {
+ perror("rmgr: Cannot allocate memory for"
+ " RX class rule locations");
+ return -1;
+ }
+
+ /* request location list */
+ nfccmd->cmd = ETHTOOL_GRXCLSRLALL;
+ nfccmd->rule_cnt = rmgr->n_rules;
+ err = send_ioctl(ctx, nfccmd);
+ if (err < 0) {
+ perror("rmgr: Cannot get RX class rules");
+ free(nfccmd);
+ return err;
+ }
+
+ /* make certain the table size is valid */
+ rmgr->size = nfccmd->data;
+ if (rmgr->size == 0 || rmgr->size < rmgr->n_rules) {
+ perror("rmgr: Invalid RX class rules table size");
+ return -1;
+ }
+
+ /* initialize bitmap for storage of valid locations */
+ rmgr->slot = calloc(1, BITS_TO_LONGS(rmgr->size) * sizeof(long));
+ if (!rmgr->slot) {
+ perror("rmgr: Cannot allocate memory for RX class rules");
+ return -1;
+ }
+
+ /* write locations to bitmap */
+ rule_locs = nfccmd->rule_locs;
+ for (i = 0; i < rmgr->n_rules; i++) {
+ err = rmgr_ins(rmgr, rule_locs[i]);
+ if (err < 0)
+ break;
+ }
+
+ free(nfccmd);
+
+ return err;
+}
+
+static void rmgr_cleanup(struct rmgr_ctrl *rmgr)
+{
+ free(rmgr->slot);
+ rmgr->slot = NULL;
+ rmgr->size = 0;
+}
+
+static int rmgr_set_location(struct cmd_context *ctx,
+ struct ethtool_rx_flow_spec *fsp)
+{
+ struct rmgr_ctrl rmgr;
+ int err;
+
+ /* init table of available rules */
+ err = rmgr_init(ctx, &rmgr);
+ if (err < 0)
+ goto out;
+
+ /* verify rule location */
+ err = rmgr_find_empty_slot(&rmgr, fsp);
+
+out:
+ /* cleanup table and free resources */
+ rmgr_cleanup(&rmgr);
+
+ return err;
+}
+
+int rxclass_rule_ins(struct cmd_context *ctx,
+ struct ethtool_rx_flow_spec *fsp, __u32 rss_context)
+{
+ struct ethtool_rxnfc nfccmd;
+ __u32 loc = fsp->location;
+ int err;
+
+ /*
+ * if location is unspecified and driver cannot select locations, pull
+ * rules from device and allocate a free rule for our use
+ */
+ if (loc & RX_CLS_LOC_SPECIAL) {
+ err = rmgr_set_location(ctx, fsp);
+ if (err < 0)
+ return err;
+ }
+
+ /* notify netdev of new rule */
+ nfccmd.cmd = ETHTOOL_SRXCLSRLINS;
+ nfccmd.rss_context = rss_context;
+ nfccmd.fs = *fsp;
+ err = send_ioctl(ctx, &nfccmd);
+ if (err < 0)
+ perror("rmgr: Cannot insert RX class rule");
+ else if (loc & RX_CLS_LOC_SPECIAL)
+ printf("Added rule with ID %d\n", nfccmd.fs.location);
+
+ return err;
+}
+
+int rxclass_rule_del(struct cmd_context *ctx, __u32 loc)
+{
+ struct ethtool_rxnfc nfccmd;
+ int err;
+
+ /* notify netdev of rule removal */
+ nfccmd.cmd = ETHTOOL_SRXCLSRLDEL;
+ nfccmd.fs.location = loc;
+ err = send_ioctl(ctx, &nfccmd);
+ if (err < 0)
+ perror("rmgr: Cannot delete RX class rule");
+
+ return err;
+}
+
+typedef enum {
+ OPT_NONE = 0,
+ OPT_S32,
+ OPT_U8,
+ OPT_U16,
+ OPT_U32,
+ OPT_U64,
+ OPT_RING_VF,
+ OPT_RING_QUEUE,
+ OPT_BE16,
+ OPT_BE32,
+ OPT_BE64,
+ OPT_IP4,
+ OPT_IP6,
+ OPT_MAC,
+} rule_opt_type_t;
+
+#define NFC_FLAG_RING 0x0001
+#define NFC_FLAG_LOC 0x0002
+#define NFC_FLAG_SADDR 0x0004
+#define NFC_FLAG_DADDR 0x0008
+#define NFC_FLAG_SPORT 0x0010
+#define NFC_FLAG_DPORT 0x0020
+#define NFC_FLAG_SPI 0x0030
+#define NFC_FLAG_TOS 0x0040
+#define NFC_FLAG_PROTO 0x0080
+#define NTUPLE_FLAG_VLAN 0x0100
+#define NTUPLE_FLAG_UDEF 0x0200
+#define NTUPLE_FLAG_VETH 0x0400
+#define NFC_FLAG_MAC_ADDR 0x0800
+#define NFC_FLAG_RING_VF 0x1000
+#define NFC_FLAG_RING_QUEUE 0x2000
+
+struct rule_opts {
+ const char *name;
+ rule_opt_type_t type;
+ u32 flag;
+ int offset;
+ int moffset;
+};
+
+static const struct rule_opts rule_nfc_tcp_ip4[] = {
+ { "src-ip", OPT_IP4, NFC_FLAG_SADDR,
+ offsetof(struct ethtool_rx_flow_spec, h_u.tcp_ip4_spec.ip4src),
+ offsetof(struct ethtool_rx_flow_spec, m_u.tcp_ip4_spec.ip4src) },
+ { "dst-ip", OPT_IP4, NFC_FLAG_DADDR,
+ offsetof(struct ethtool_rx_flow_spec, h_u.tcp_ip4_spec.ip4dst),
+ offsetof(struct ethtool_rx_flow_spec, m_u.tcp_ip4_spec.ip4dst) },
+ { "tos", OPT_U8, NFC_FLAG_TOS,
+ offsetof(struct ethtool_rx_flow_spec, h_u.tcp_ip4_spec.tos),
+ offsetof(struct ethtool_rx_flow_spec, m_u.tcp_ip4_spec.tos) },
+ { "src-port", OPT_BE16, NFC_FLAG_SPORT,
+ offsetof(struct ethtool_rx_flow_spec, h_u.tcp_ip4_spec.psrc),
+ offsetof(struct ethtool_rx_flow_spec, m_u.tcp_ip4_spec.psrc) },
+ { "dst-port", OPT_BE16, NFC_FLAG_DPORT,
+ offsetof(struct ethtool_rx_flow_spec, h_u.tcp_ip4_spec.pdst),
+ offsetof(struct ethtool_rx_flow_spec, m_u.tcp_ip4_spec.pdst) },
+ { "action", OPT_U64, NFC_FLAG_RING,
+ offsetof(struct ethtool_rx_flow_spec, ring_cookie), -1 },
+ { "vf", OPT_RING_VF, NFC_FLAG_RING_VF,
+ offsetof(struct ethtool_rx_flow_spec, ring_cookie), -1 },
+ { "queue", OPT_RING_QUEUE, NFC_FLAG_RING_QUEUE,
+ offsetof(struct ethtool_rx_flow_spec, ring_cookie), -1 },
+ { "loc", OPT_U32, NFC_FLAG_LOC,
+ offsetof(struct ethtool_rx_flow_spec, location), -1 },
+ { "vlan-etype", OPT_BE16, NTUPLE_FLAG_VETH,
+ offsetof(struct ethtool_rx_flow_spec, h_ext.vlan_etype),
+ offsetof(struct ethtool_rx_flow_spec, m_ext.vlan_etype) },
+ { "vlan", OPT_BE16, NTUPLE_FLAG_VLAN,
+ offsetof(struct ethtool_rx_flow_spec, h_ext.vlan_tci),
+ offsetof(struct ethtool_rx_flow_spec, m_ext.vlan_tci) },
+ { "user-def", OPT_BE64, NTUPLE_FLAG_UDEF,
+ offsetof(struct ethtool_rx_flow_spec, h_ext.data),
+ offsetof(struct ethtool_rx_flow_spec, m_ext.data) },
+ { "dst-mac", OPT_MAC, NFC_FLAG_MAC_ADDR,
+ offsetof(struct ethtool_rx_flow_spec, h_ext.h_dest),
+ offsetof(struct ethtool_rx_flow_spec, m_ext.h_dest) },
+};
+
+static const struct rule_opts rule_nfc_esp_ip4[] = {
+ { "src-ip", OPT_IP4, NFC_FLAG_SADDR,
+ offsetof(struct ethtool_rx_flow_spec, h_u.esp_ip4_spec.ip4src),
+ offsetof(struct ethtool_rx_flow_spec, m_u.esp_ip4_spec.ip4src) },
+ { "dst-ip", OPT_IP4, NFC_FLAG_DADDR,
+ offsetof(struct ethtool_rx_flow_spec, h_u.esp_ip4_spec.ip4dst),
+ offsetof(struct ethtool_rx_flow_spec, m_u.esp_ip4_spec.ip4dst) },
+ { "tos", OPT_U8, NFC_FLAG_TOS,
+ offsetof(struct ethtool_rx_flow_spec, h_u.esp_ip4_spec.tos),
+ offsetof(struct ethtool_rx_flow_spec, m_u.esp_ip4_spec.tos) },
+ { "spi", OPT_BE32, NFC_FLAG_SPI,
+ offsetof(struct ethtool_rx_flow_spec, h_u.esp_ip4_spec.spi),
+ offsetof(struct ethtool_rx_flow_spec, m_u.esp_ip4_spec.spi) },
+ { "action", OPT_U64, NFC_FLAG_RING,
+ offsetof(struct ethtool_rx_flow_spec, ring_cookie), -1 },
+ { "vf", OPT_RING_VF, NFC_FLAG_RING_VF,
+ offsetof(struct ethtool_rx_flow_spec, ring_cookie), -1 },
+ { "queue", OPT_RING_QUEUE, NFC_FLAG_RING_QUEUE,
+ offsetof(struct ethtool_rx_flow_spec, ring_cookie), -1 },
+ { "loc", OPT_U32, NFC_FLAG_LOC,
+ offsetof(struct ethtool_rx_flow_spec, location), -1 },
+ { "vlan-etype", OPT_BE16, NTUPLE_FLAG_VETH,
+ offsetof(struct ethtool_rx_flow_spec, h_ext.vlan_etype),
+ offsetof(struct ethtool_rx_flow_spec, m_ext.vlan_etype) },
+ { "vlan", OPT_BE16, NTUPLE_FLAG_VLAN,
+ offsetof(struct ethtool_rx_flow_spec, h_ext.vlan_tci),
+ offsetof(struct ethtool_rx_flow_spec, m_ext.vlan_tci) },
+ { "user-def", OPT_BE64, NTUPLE_FLAG_UDEF,
+ offsetof(struct ethtool_rx_flow_spec, h_ext.data),
+ offsetof(struct ethtool_rx_flow_spec, m_ext.data) },
+ { "dst-mac", OPT_MAC, NFC_FLAG_MAC_ADDR,
+ offsetof(struct ethtool_rx_flow_spec, h_ext.h_dest),
+ offsetof(struct ethtool_rx_flow_spec, m_ext.h_dest) },
+};
+
+static const struct rule_opts rule_nfc_usr_ip4[] = {
+ { "src-ip", OPT_IP4, NFC_FLAG_SADDR,
+ offsetof(struct ethtool_rx_flow_spec, h_u.usr_ip4_spec.ip4src),
+ offsetof(struct ethtool_rx_flow_spec, m_u.usr_ip4_spec.ip4src) },
+ { "dst-ip", OPT_IP4, NFC_FLAG_DADDR,
+ offsetof(struct ethtool_rx_flow_spec, h_u.usr_ip4_spec.ip4dst),
+ offsetof(struct ethtool_rx_flow_spec, m_u.usr_ip4_spec.ip4dst) },
+ { "tos", OPT_U8, NFC_FLAG_TOS,
+ offsetof(struct ethtool_rx_flow_spec, h_u.usr_ip4_spec.tos),
+ offsetof(struct ethtool_rx_flow_spec, m_u.usr_ip4_spec.tos) },
+ { "l4proto", OPT_U8, NFC_FLAG_PROTO,
+ offsetof(struct ethtool_rx_flow_spec, h_u.usr_ip4_spec.proto),
+ offsetof(struct ethtool_rx_flow_spec, m_u.usr_ip4_spec.proto) },
+ { "l4data", OPT_BE32, NFC_FLAG_SPI,
+ offsetof(struct ethtool_rx_flow_spec, h_u.usr_ip4_spec.l4_4_bytes),
+ offsetof(struct ethtool_rx_flow_spec, m_u.usr_ip4_spec.l4_4_bytes) },
+ { "spi", OPT_BE32, NFC_FLAG_SPI,
+ offsetof(struct ethtool_rx_flow_spec, h_u.usr_ip4_spec.l4_4_bytes),
+ offsetof(struct ethtool_rx_flow_spec, m_u.usr_ip4_spec.l4_4_bytes) },
+ { "src-port", OPT_BE16, NFC_FLAG_SPORT,
+ offsetof(struct ethtool_rx_flow_spec, h_u.usr_ip4_spec.l4_4_bytes),
+ offsetof(struct ethtool_rx_flow_spec, m_u.usr_ip4_spec.l4_4_bytes) },
+ { "dst-port", OPT_BE16, NFC_FLAG_DPORT,
+ offsetof(struct ethtool_rx_flow_spec, h_u.usr_ip4_spec.l4_4_bytes) + 2,
+ offsetof(struct ethtool_rx_flow_spec, m_u.usr_ip4_spec.l4_4_bytes) + 2 },
+ { "action", OPT_U64, NFC_FLAG_RING,
+ offsetof(struct ethtool_rx_flow_spec, ring_cookie), -1 },
+ { "vf", OPT_RING_VF, NFC_FLAG_RING_VF,
+ offsetof(struct ethtool_rx_flow_spec, ring_cookie), -1 },
+ { "queue", OPT_RING_QUEUE, NFC_FLAG_RING_QUEUE,
+ offsetof(struct ethtool_rx_flow_spec, ring_cookie), -1 },
+ { "loc", OPT_U32, NFC_FLAG_LOC,
+ offsetof(struct ethtool_rx_flow_spec, location), -1 },
+ { "vlan-etype", OPT_BE16, NTUPLE_FLAG_VETH,
+ offsetof(struct ethtool_rx_flow_spec, h_ext.vlan_etype),
+ offsetof(struct ethtool_rx_flow_spec, m_ext.vlan_etype) },
+ { "vlan", OPT_BE16, NTUPLE_FLAG_VLAN,
+ offsetof(struct ethtool_rx_flow_spec, h_ext.vlan_tci),
+ offsetof(struct ethtool_rx_flow_spec, m_ext.vlan_tci) },
+ { "user-def", OPT_BE64, NTUPLE_FLAG_UDEF,
+ offsetof(struct ethtool_rx_flow_spec, h_ext.data),
+ offsetof(struct ethtool_rx_flow_spec, m_ext.data) },
+ { "dst-mac", OPT_MAC, NFC_FLAG_MAC_ADDR,
+ offsetof(struct ethtool_rx_flow_spec, h_ext.h_dest),
+ offsetof(struct ethtool_rx_flow_spec, m_ext.h_dest) },
+};
+
+static const struct rule_opts rule_nfc_tcp_ip6[] = {
+ { "src-ip", OPT_IP6, NFC_FLAG_SADDR,
+ offsetof(struct ethtool_rx_flow_spec, h_u.tcp_ip6_spec.ip6src),
+ offsetof(struct ethtool_rx_flow_spec, m_u.tcp_ip6_spec.ip6src) },
+ { "dst-ip", OPT_IP6, NFC_FLAG_DADDR,
+ offsetof(struct ethtool_rx_flow_spec, h_u.tcp_ip6_spec.ip6dst),
+ offsetof(struct ethtool_rx_flow_spec, m_u.tcp_ip6_spec.ip6dst) },
+ { "tclass", OPT_U8, NFC_FLAG_TOS,
+ offsetof(struct ethtool_rx_flow_spec, h_u.tcp_ip6_spec.tclass),
+ offsetof(struct ethtool_rx_flow_spec, m_u.tcp_ip6_spec.tclass) },
+ { "src-port", OPT_BE16, NFC_FLAG_SPORT,
+ offsetof(struct ethtool_rx_flow_spec, h_u.tcp_ip6_spec.psrc),
+ offsetof(struct ethtool_rx_flow_spec, m_u.tcp_ip6_spec.psrc) },
+ { "dst-port", OPT_BE16, NFC_FLAG_DPORT,
+ offsetof(struct ethtool_rx_flow_spec, h_u.tcp_ip6_spec.pdst),
+ offsetof(struct ethtool_rx_flow_spec, m_u.tcp_ip6_spec.pdst) },
+ { "action", OPT_U64, NFC_FLAG_RING,
+ offsetof(struct ethtool_rx_flow_spec, ring_cookie), -1 },
+ { "vf", OPT_RING_VF, NFC_FLAG_RING_VF,
+ offsetof(struct ethtool_rx_flow_spec, ring_cookie), -1 },
+ { "queue", OPT_RING_QUEUE, NFC_FLAG_RING_QUEUE,
+ offsetof(struct ethtool_rx_flow_spec, ring_cookie), -1 },
+ { "loc", OPT_U32, NFC_FLAG_LOC,
+ offsetof(struct ethtool_rx_flow_spec, location), -1 },
+ { "vlan-etype", OPT_BE16, NTUPLE_FLAG_VETH,
+ offsetof(struct ethtool_rx_flow_spec, h_ext.vlan_etype),
+ offsetof(struct ethtool_rx_flow_spec, m_ext.vlan_etype) },
+ { "vlan", OPT_BE16, NTUPLE_FLAG_VLAN,
+ offsetof(struct ethtool_rx_flow_spec, h_ext.vlan_tci),
+ offsetof(struct ethtool_rx_flow_spec, m_ext.vlan_tci) },
+ { "user-def", OPT_BE64, NTUPLE_FLAG_UDEF,
+ offsetof(struct ethtool_rx_flow_spec, h_ext.data),
+ offsetof(struct ethtool_rx_flow_spec, m_ext.data) },
+ { "dst-mac", OPT_MAC, NFC_FLAG_MAC_ADDR,
+ offsetof(struct ethtool_rx_flow_spec, h_ext.h_dest),
+ offsetof(struct ethtool_rx_flow_spec, m_ext.h_dest) },
+};
+
+static const struct rule_opts rule_nfc_esp_ip6[] = {
+ { "src-ip", OPT_IP6, NFC_FLAG_SADDR,
+ offsetof(struct ethtool_rx_flow_spec, h_u.esp_ip6_spec.ip6src),
+ offsetof(struct ethtool_rx_flow_spec, m_u.esp_ip6_spec.ip6src) },
+ { "dst-ip", OPT_IP6, NFC_FLAG_DADDR,
+ offsetof(struct ethtool_rx_flow_spec, h_u.esp_ip6_spec.ip6dst),
+ offsetof(struct ethtool_rx_flow_spec, m_u.esp_ip6_spec.ip6dst) },
+ { "tclass", OPT_U8, NFC_FLAG_TOS,
+ offsetof(struct ethtool_rx_flow_spec, h_u.esp_ip6_spec.tclass),
+ offsetof(struct ethtool_rx_flow_spec, m_u.esp_ip6_spec.tclass) },
+ { "spi", OPT_BE32, NFC_FLAG_SPI,
+ offsetof(struct ethtool_rx_flow_spec, h_u.esp_ip6_spec.spi),
+ offsetof(struct ethtool_rx_flow_spec, m_u.esp_ip6_spec.spi) },
+ { "action", OPT_U64, NFC_FLAG_RING,
+ offsetof(struct ethtool_rx_flow_spec, ring_cookie), -1 },
+ { "vf", OPT_RING_VF, NFC_FLAG_RING_VF,
+ offsetof(struct ethtool_rx_flow_spec, ring_cookie), -1 },
+ { "queue", OPT_RING_QUEUE, NFC_FLAG_RING_QUEUE,
+ offsetof(struct ethtool_rx_flow_spec, ring_cookie), -1 },
+ { "loc", OPT_U32, NFC_FLAG_LOC,
+ offsetof(struct ethtool_rx_flow_spec, location), -1 },
+ { "vlan-etype", OPT_BE16, NTUPLE_FLAG_VETH,
+ offsetof(struct ethtool_rx_flow_spec, h_ext.vlan_etype),
+ offsetof(struct ethtool_rx_flow_spec, m_ext.vlan_etype) },
+ { "vlan", OPT_BE16, NTUPLE_FLAG_VLAN,
+ offsetof(struct ethtool_rx_flow_spec, h_ext.vlan_tci),
+ offsetof(struct ethtool_rx_flow_spec, m_ext.vlan_tci) },
+ { "user-def", OPT_BE64, NTUPLE_FLAG_UDEF,
+ offsetof(struct ethtool_rx_flow_spec, h_ext.data),
+ offsetof(struct ethtool_rx_flow_spec, m_ext.data) },
+ { "dst-mac", OPT_MAC, NFC_FLAG_MAC_ADDR,
+ offsetof(struct ethtool_rx_flow_spec, h_ext.h_dest),
+ offsetof(struct ethtool_rx_flow_spec, m_ext.h_dest) },
+};
+
+static const struct rule_opts rule_nfc_usr_ip6[] = {
+ { "src-ip", OPT_IP6, NFC_FLAG_SADDR,
+ offsetof(struct ethtool_rx_flow_spec, h_u.usr_ip6_spec.ip6src),
+ offsetof(struct ethtool_rx_flow_spec, m_u.usr_ip6_spec.ip6src) },
+ { "dst-ip", OPT_IP6, NFC_FLAG_DADDR,
+ offsetof(struct ethtool_rx_flow_spec, h_u.usr_ip6_spec.ip6dst),
+ offsetof(struct ethtool_rx_flow_spec, m_u.usr_ip6_spec.ip6dst) },
+ { "tclass", OPT_U8, NFC_FLAG_TOS,
+ offsetof(struct ethtool_rx_flow_spec, h_u.usr_ip6_spec.tclass),
+ offsetof(struct ethtool_rx_flow_spec, m_u.usr_ip6_spec.tclass) },
+ { "l4proto", OPT_U8, NFC_FLAG_PROTO,
+ offsetof(struct ethtool_rx_flow_spec, h_u.usr_ip6_spec.l4_proto),
+ offsetof(struct ethtool_rx_flow_spec, m_u.usr_ip6_spec.l4_proto) },
+ { "l4data", OPT_BE32, NFC_FLAG_SPI,
+ offsetof(struct ethtool_rx_flow_spec, h_u.usr_ip6_spec.l4_4_bytes),
+ offsetof(struct ethtool_rx_flow_spec, m_u.usr_ip6_spec.l4_4_bytes) },
+ { "spi", OPT_BE32, NFC_FLAG_SPI,
+ offsetof(struct ethtool_rx_flow_spec, h_u.usr_ip6_spec.l4_4_bytes),
+ offsetof(struct ethtool_rx_flow_spec, m_u.usr_ip6_spec.l4_4_bytes) },
+ { "src-port", OPT_BE16, NFC_FLAG_SPORT,
+ offsetof(struct ethtool_rx_flow_spec, h_u.usr_ip6_spec.l4_4_bytes),
+ offsetof(struct ethtool_rx_flow_spec, m_u.usr_ip6_spec.l4_4_bytes) },
+ { "dst-port", OPT_BE16, NFC_FLAG_DPORT,
+ offsetof(struct ethtool_rx_flow_spec, h_u.usr_ip6_spec.l4_4_bytes) + 2,
+ offsetof(struct ethtool_rx_flow_spec, m_u.usr_ip6_spec.l4_4_bytes) + 2 },
+ { "action", OPT_U64, NFC_FLAG_RING,
+ offsetof(struct ethtool_rx_flow_spec, ring_cookie), -1 },
+ { "vf", OPT_RING_VF, NFC_FLAG_RING_VF,
+ offsetof(struct ethtool_rx_flow_spec, ring_cookie), -1 },
+ { "queue", OPT_RING_QUEUE, NFC_FLAG_RING_QUEUE,
+ offsetof(struct ethtool_rx_flow_spec, ring_cookie), -1 },
+ { "loc", OPT_U32, NFC_FLAG_LOC,
+ offsetof(struct ethtool_rx_flow_spec, location), -1 },
+ { "vlan-etype", OPT_BE16, NTUPLE_FLAG_VETH,
+ offsetof(struct ethtool_rx_flow_spec, h_ext.vlan_etype),
+ offsetof(struct ethtool_rx_flow_spec, m_ext.vlan_etype) },
+ { "vlan", OPT_BE16, NTUPLE_FLAG_VLAN,
+ offsetof(struct ethtool_rx_flow_spec, h_ext.vlan_tci),
+ offsetof(struct ethtool_rx_flow_spec, m_ext.vlan_tci) },
+ { "user-def", OPT_BE64, NTUPLE_FLAG_UDEF,
+ offsetof(struct ethtool_rx_flow_spec, h_ext.data),
+ offsetof(struct ethtool_rx_flow_spec, m_ext.data) },
+ { "dst-mac", OPT_MAC, NFC_FLAG_MAC_ADDR,
+ offsetof(struct ethtool_rx_flow_spec, h_ext.h_dest),
+ offsetof(struct ethtool_rx_flow_spec, m_ext.h_dest) },
+};
+
+static const struct rule_opts rule_nfc_ether[] = {
+ { "src", OPT_MAC, NFC_FLAG_SADDR,
+ offsetof(struct ethtool_rx_flow_spec, h_u.ether_spec.h_source),
+ offsetof(struct ethtool_rx_flow_spec, m_u.ether_spec.h_source) },
+ { "dst", OPT_MAC, NFC_FLAG_DADDR,
+ offsetof(struct ethtool_rx_flow_spec, h_u.ether_spec.h_dest),
+ offsetof(struct ethtool_rx_flow_spec, m_u.ether_spec.h_dest) },
+ { "proto", OPT_BE16, NFC_FLAG_PROTO,
+ offsetof(struct ethtool_rx_flow_spec, h_u.ether_spec.h_proto),
+ offsetof(struct ethtool_rx_flow_spec, m_u.ether_spec.h_proto) },
+ { "action", OPT_U64, NFC_FLAG_RING,
+ offsetof(struct ethtool_rx_flow_spec, ring_cookie), -1 },
+ { "vf", OPT_RING_VF, NFC_FLAG_RING_VF,
+ offsetof(struct ethtool_rx_flow_spec, ring_cookie), -1 },
+ { "queue", OPT_RING_QUEUE, NFC_FLAG_RING_QUEUE,
+ offsetof(struct ethtool_rx_flow_spec, ring_cookie), -1 },
+ { "loc", OPT_U32, NFC_FLAG_LOC,
+ offsetof(struct ethtool_rx_flow_spec, location), -1 },
+ { "vlan-etype", OPT_BE16, NTUPLE_FLAG_VETH,
+ offsetof(struct ethtool_rx_flow_spec, h_ext.vlan_etype),
+ offsetof(struct ethtool_rx_flow_spec, m_ext.vlan_etype) },
+ { "vlan", OPT_BE16, NTUPLE_FLAG_VLAN,
+ offsetof(struct ethtool_rx_flow_spec, h_ext.vlan_tci),
+ offsetof(struct ethtool_rx_flow_spec, m_ext.vlan_tci) },
+ { "user-def", OPT_BE64, NTUPLE_FLAG_UDEF,
+ offsetof(struct ethtool_rx_flow_spec, h_ext.data),
+ offsetof(struct ethtool_rx_flow_spec, m_ext.data) },
+};
+
+static int rxclass_get_long(char *str, long long *val, int size)
+{
+ long long max = ~0ULL >> (65 - size);
+ char *endp;
+
+ errno = 0;
+
+ *val = strtoll(str, &endp, 0);
+
+ if (*endp || errno || (*val > max) || (*val < ~max))
+ return -1;
+
+ return 0;
+}
+
+static int rxclass_get_ulong(char *str, unsigned long long *val, int size)
+{
+ unsigned long long max = ~0ULL >> (64 - size);
+ char *endp;
+
+ errno = 0;
+
+ *val = strtoull(str, &endp, 0);
+
+ if (*endp || errno || (*val > max))
+ return -1;
+
+ return 0;
+}
+
+static int rxclass_get_ipv4(char *str, __be32 *val)
+{
+ if (!inet_pton(AF_INET, str, val))
+ return -1;
+
+ return 0;
+}
+
+static int rxclass_get_ipv6(char *str, __be32 *val)
+{
+ if (!inet_pton(AF_INET6, str, val))
+ return -1;
+
+ return 0;
+}
+
+static int rxclass_get_ether(char *str, unsigned char *val)
+{
+ unsigned int buf[ETH_ALEN];
+ int count;
+
+ if (!strchr(str, ':'))
+ return -1;
+
+ count = sscanf(str, "%2x:%2x:%2x:%2x:%2x:%2x",
+ &buf[0], &buf[1], &buf[2],
+ &buf[3], &buf[4], &buf[5]);
+
+ if (count != ETH_ALEN)
+ return -1;
+
+ do {
+ count--;
+ val[count] = buf[count];
+ } while (count);
+
+ return 0;
+}
+
+static int rxclass_get_val(char *str, unsigned char *p, u32 *flags,
+ const struct rule_opts *opt)
+{
+ unsigned long long mask = ~0ULL;
+ int err = 0;
+
+ if (*flags & opt->flag)
+ return -1;
+
+ *flags |= opt->flag;
+
+ switch (opt->type) {
+ case OPT_S32: {
+ long long val;
+ err = rxclass_get_long(str, &val, 32);
+ if (err)
+ return -1;
+ *(int *)&p[opt->offset] = (int)val;
+ if (opt->moffset >= 0)
+ *(int *)&p[opt->moffset] = (int)mask;
+ break;
+ }
+ case OPT_U8: {
+ unsigned long long val;
+ err = rxclass_get_ulong(str, &val, 8);
+ if (err)
+ return -1;
+ *(u8 *)&p[opt->offset] = (u8)val;
+ if (opt->moffset >= 0)
+ *(u8 *)&p[opt->moffset] = (u8)mask;
+ break;
+ }
+ case OPT_U16: {
+ unsigned long long val;
+ err = rxclass_get_ulong(str, &val, 16);
+ if (err)
+ return -1;
+ *(u16 *)&p[opt->offset] = (u16)val;
+ if (opt->moffset >= 0)
+ *(u16 *)&p[opt->moffset] = (u16)mask;
+ break;
+ }
+ case OPT_U32: {
+ unsigned long long val;
+ err = rxclass_get_ulong(str, &val, 32);
+ if (err)
+ return -1;
+ *(u32 *)&p[opt->offset] = (u32)val;
+ if (opt->moffset >= 0)
+ *(u32 *)&p[opt->moffset] = (u32)mask;
+ break;
+ }
+ case OPT_U64: {
+ unsigned long long val;
+ err = rxclass_get_ulong(str, &val, 64);
+ if (err)
+ return -1;
+ *(u64 *)&p[opt->offset] = (u64)val;
+ if (opt->moffset >= 0)
+ *(u64 *)&p[opt->moffset] = (u64)mask;
+ break;
+ }
+ case OPT_RING_VF: {
+ unsigned long long val;
+ err = rxclass_get_ulong(str, &val, 8);
+ if (err)
+ return -1;
+
+ /* The ring_cookie uses 0 to indicate the rule targets the
+ * main function, so add 1 to the value in order to target the
+ * correct virtual function.
+ */
+ val++;
+
+ *(u64 *)&p[opt->offset] &= ~ETHTOOL_RX_FLOW_SPEC_RING_VF;
+ *(u64 *)&p[opt->offset] |= (u64)val << ETHTOOL_RX_FLOW_SPEC_RING_VF_OFF;
+ break;
+ }
+ case OPT_RING_QUEUE: {
+ unsigned long long val;
+ err = rxclass_get_ulong(str, &val, 32);
+ if (err)
+ return -1;
+ *(u64 *)&p[opt->offset] &= ~ETHTOOL_RX_FLOW_SPEC_RING;
+ *(u64 *)&p[opt->offset] |= (u64)val;
+ break;
+ }
+ case OPT_BE16: {
+ unsigned long long val;
+ err = rxclass_get_ulong(str, &val, 16);
+ if (err)
+ return -1;
+ *(__be16 *)&p[opt->offset] = htons((u16)val);
+ if (opt->moffset >= 0)
+ *(__be16 *)&p[opt->moffset] = (__be16)mask;
+ break;
+ }
+ case OPT_BE32: {
+ unsigned long long val;
+ err = rxclass_get_ulong(str, &val, 32);
+ if (err)
+ return -1;
+ *(__be32 *)&p[opt->offset] = htonl((u32)val);
+ if (opt->moffset >= 0)
+ *(__be32 *)&p[opt->moffset] = (__be32)mask;
+ break;
+ }
+ case OPT_BE64: {
+ unsigned long long val;
+ err = rxclass_get_ulong(str, &val, 64);
+ if (err)
+ return -1;
+ *(__be64 *)&p[opt->offset] = htonll((u64)val);
+ if (opt->moffset >= 0)
+ *(__be64 *)&p[opt->moffset] = (__be64)mask;
+ break;
+ }
+ case OPT_IP4: {
+ __be32 val;
+ err = rxclass_get_ipv4(str, &val);
+ if (err)
+ return -1;
+ *(__be32 *)&p[opt->offset] = val;
+ if (opt->moffset >= 0)
+ *(__be32 *)&p[opt->moffset] = (__be32)mask;
+ break;
+ }
+ case OPT_IP6: {
+ __be32 val[4];
+ err = rxclass_get_ipv6(str, val);
+ if (err)
+ return -1;
+ memcpy(&p[opt->offset], val, sizeof(val));
+ if (opt->moffset >= 0)
+ memset(&p[opt->moffset], mask, sizeof(val));
+ break;
+ }
+ case OPT_MAC: {
+ unsigned char val[ETH_ALEN];
+ err = rxclass_get_ether(str, val);
+ if (err)
+ return -1;
+ memcpy(&p[opt->offset], val, ETH_ALEN);
+ if (opt->moffset >= 0)
+ memcpy(&p[opt->moffset], &mask, ETH_ALEN);
+ break;
+ }
+ case OPT_NONE:
+ default:
+ return -1;
+ }
+
+ return 0;
+}
+
+static int rxclass_get_mask(char *str, unsigned char *p,
+ const struct rule_opts *opt)
+{
+ int err = 0;
+
+ if (opt->moffset < 0)
+ return -1;
+
+ switch (opt->type) {
+ case OPT_S32: {
+ long long val;
+ err = rxclass_get_long(str, &val, 32);
+ if (err)
+ return -1;
+ *(int *)&p[opt->moffset] = ~(int)val;
+ break;
+ }
+ case OPT_U8: {
+ unsigned long long val;
+ err = rxclass_get_ulong(str, &val, 8);
+ if (err)
+ return -1;
+ *(u8 *)&p[opt->moffset] = ~(u8)val;
+ break;
+ }
+ case OPT_U16: {
+ unsigned long long val;
+ err = rxclass_get_ulong(str, &val, 16);
+ if (err)
+ return -1;
+ *(u16 *)&p[opt->moffset] = ~(u16)val;
+ break;
+ }
+ case OPT_U32: {
+ unsigned long long val;
+ err = rxclass_get_ulong(str, &val, 32);
+ if (err)
+ return -1;
+ *(u32 *)&p[opt->moffset] = ~(u32)val;
+ break;
+ }
+ case OPT_U64: {
+ unsigned long long val;
+ err = rxclass_get_ulong(str, &val, 64);
+ if (err)
+ return -1;
+ *(u64 *)&p[opt->moffset] = ~(u64)val;
+ break;
+ }
+ case OPT_BE16: {
+ unsigned long long val;
+ err = rxclass_get_ulong(str, &val, 16);
+ if (err)
+ return -1;
+ *(__be16 *)&p[opt->moffset] = ~htons((u16)val);
+ break;
+ }
+ case OPT_BE32: {
+ unsigned long long val;
+ err = rxclass_get_ulong(str, &val, 32);
+ if (err)
+ return -1;
+ *(__be32 *)&p[opt->moffset] = ~htonl((u32)val);
+ break;
+ }
+ case OPT_BE64: {
+ unsigned long long val;
+ err = rxclass_get_ulong(str, &val, 64);
+ if (err)
+ return -1;
+ *(__be64 *)&p[opt->moffset] = ~htonll((u64)val);
+ break;
+ }
+ case OPT_IP4: {
+ __be32 val;
+ err = rxclass_get_ipv4(str, &val);
+ if (err)
+ return -1;
+ *(__be32 *)&p[opt->moffset] = ~val;
+ break;
+ }
+ case OPT_IP6: {
+ __be32 val[4], *field;
+ int i;
+ err = rxclass_get_ipv6(str, val);
+ if (err)
+ return -1;
+ field = (__be32 *)&p[opt->moffset];
+ for (i = 0; i < 4; i++)
+ field[i] = ~val[i];
+ break;
+ }
+ case OPT_MAC: {
+ unsigned char val[ETH_ALEN];
+ int i;
+ err = rxclass_get_ether(str, val);
+ if (err)
+ return -1;
+
+ for (i = 0; i < ETH_ALEN; i++)
+ val[i] = ~val[i];
+
+ memcpy(&p[opt->moffset], val, ETH_ALEN);
+ break;
+ }
+ case OPT_NONE:
+ default:
+ return -1;
+ }
+
+ return 0;
+}
+
+int rxclass_parse_ruleopts(struct cmd_context *ctx,
+ struct ethtool_rx_flow_spec *fsp, __u32 *rss_context)
+{
+ const struct rule_opts *options;
+ unsigned char *p = (unsigned char *)fsp;
+ int i = 0, n_opts, err;
+ u32 flags = 0;
+ int flow_type;
+ int argc = ctx->argc;
+ char **argp = ctx->argp;
+
+ if (argc < 1)
+ goto syntax_err;
+
+ if (!strcmp(argp[0], "tcp4"))
+ flow_type = TCP_V4_FLOW;
+ else if (!strcmp(argp[0], "udp4"))
+ flow_type = UDP_V4_FLOW;
+ else if (!strcmp(argp[0], "sctp4"))
+ flow_type = SCTP_V4_FLOW;
+ else if (!strcmp(argp[0], "ah4"))
+ flow_type = AH_V4_FLOW;
+ else if (!strcmp(argp[0], "esp4"))
+ flow_type = ESP_V4_FLOW;
+ else if (!strcmp(argp[0], "ip4"))
+ flow_type = IPV4_USER_FLOW;
+ else if (!strcmp(argp[0], "tcp6"))
+ flow_type = TCP_V6_FLOW;
+ else if (!strcmp(argp[0], "udp6"))
+ flow_type = UDP_V6_FLOW;
+ else if (!strcmp(argp[0], "sctp6"))
+ flow_type = SCTP_V6_FLOW;
+ else if (!strcmp(argp[0], "ah6"))
+ flow_type = AH_V6_FLOW;
+ else if (!strcmp(argp[0], "esp6"))
+ flow_type = ESP_V6_FLOW;
+ else if (!strcmp(argp[0], "ip6"))
+ flow_type = IPV6_USER_FLOW;
+ else if (!strcmp(argp[0], "ether"))
+ flow_type = ETHER_FLOW;
+ else
+ goto syntax_err;
+
+ switch (flow_type) {
+ case TCP_V4_FLOW:
+ case UDP_V4_FLOW:
+ case SCTP_V4_FLOW:
+ options = rule_nfc_tcp_ip4;
+ n_opts = ARRAY_SIZE(rule_nfc_tcp_ip4);
+ break;
+ case AH_V4_FLOW:
+ case ESP_V4_FLOW:
+ options = rule_nfc_esp_ip4;
+ n_opts = ARRAY_SIZE(rule_nfc_esp_ip4);
+ break;
+ case IPV4_USER_FLOW:
+ options = rule_nfc_usr_ip4;
+ n_opts = ARRAY_SIZE(rule_nfc_usr_ip4);
+ break;
+ case TCP_V6_FLOW:
+ case UDP_V6_FLOW:
+ case SCTP_V6_FLOW:
+ options = rule_nfc_tcp_ip6;
+ n_opts = ARRAY_SIZE(rule_nfc_tcp_ip6);
+ break;
+ case AH_V6_FLOW:
+ case ESP_V6_FLOW:
+ options = rule_nfc_esp_ip6;
+ n_opts = ARRAY_SIZE(rule_nfc_esp_ip6);
+ break;
+ case IPV6_USER_FLOW:
+ options = rule_nfc_usr_ip6;
+ n_opts = ARRAY_SIZE(rule_nfc_usr_ip6);
+ break;
+ case ETHER_FLOW:
+ options = rule_nfc_ether;
+ n_opts = ARRAY_SIZE(rule_nfc_ether);
+ break;
+ default:
+ fprintf(stderr, "Add rule, invalid rule type[%s]\n", argp[0]);
+ return -1;
+ }
+
+ memset(p, 0, sizeof(*fsp));
+ fsp->flow_type = flow_type;
+ fsp->location = RX_CLS_LOC_ANY;
+
+ for (i = 1; i < argc;) {
+ const struct rule_opts *opt;
+ int idx;
+
+ /* special handling for 'context %d' as it doesn't go in
+ * the struct ethtool_rx_flow_spec
+ */
+ if (!strcmp(argp[i], "context")) {
+ unsigned long long val;
+
+ i++;
+ if (i >= argc) {
+ fprintf(stderr, "'context' missing value\n");
+ return -1;
+ }
+
+ if (rxclass_get_ulong(argp[i], &val, 32)) {
+ fprintf(stderr, "Invalid context value[%s]\n",
+ argp[i]);
+ return -1;
+ }
+
+ /* Can't use the ALLOC special value as the context ID
+ * of a filter to insert
+ */
+ if ((__u32)val == ETH_RXFH_CONTEXT_ALLOC) {
+ fprintf(stderr, "Bad context value %x\n",
+ (__u32)val);
+ return -1;
+ }
+
+ *rss_context = (__u32)val;
+ fsp->flow_type |= FLOW_RSS;
+ i++;
+ continue;
+ }
+
+ for (opt = options, idx = 0; idx < n_opts; idx++, opt++) {
+ char mask_name[16];
+
+ if (strcmp(argp[i], opt->name))
+ continue;
+
+ i++;
+ if (i >= argc)
+ break;
+
+ err = rxclass_get_val(argp[i], p, &flags, opt);
+ if (err) {
+ fprintf(stderr, "Invalid %s value[%s]\n",
+ opt->name, argp[i]);
+ return -1;
+ }
+
+ i++;
+ if (i >= argc)
+ break;
+
+ sprintf(mask_name, "%s-mask", opt->name);
+ if (strcmp(argp[i], "m") && strcmp(argp[i], mask_name))
+ break;
+
+ i++;
+ if (i >= argc)
+ goto syntax_err;
+
+ err = rxclass_get_mask(argp[i], p, opt);
+ if (err) {
+ fprintf(stderr, "Invalid %s mask[%s]\n",
+ opt->name, argp[i]);
+ return -1;
+ }
+
+ i++;
+
+ break;
+ }
+ if (idx == n_opts) {
+ fprintf(stdout, "Add rule, unrecognized option[%s]\n",
+ argp[i]);
+ return -1;
+ }
+ }
+
+ if ((flags & NFC_FLAG_RING) && (flags & NFC_FLAG_RING_QUEUE)) {
+ fprintf(stderr, "action and queue are not compatible\n");
+ return -1;
+ }
+
+ if ((flags & NFC_FLAG_RING) && (flags & NFC_FLAG_RING_VF)) {
+ fprintf(stderr, "action and vf are not compatible\n");
+ return -1;
+ }
+
+ if (flow_type == IPV4_USER_FLOW)
+ fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4;
+ if (flags & (NTUPLE_FLAG_VLAN | NTUPLE_FLAG_UDEF | NTUPLE_FLAG_VETH))
+ fsp->flow_type |= FLOW_EXT;
+ if (flags & NFC_FLAG_MAC_ADDR)
+ fsp->flow_type |= FLOW_MAC_EXT;
+
+ return 0;
+
+syntax_err:
+ fprintf(stderr, "Add rule, invalid syntax\n");
+ return -1;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-02 20:40:46 +0000